Re: [Autoconf] RFC 5889 (Was: Call for comments to a new AUTOCONF charter proposal)
"Charles E. Perkins" <charles.perkins@earthlink.net> Thu, 08 July 2010 17:29 UTC
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Date: Thu, 08 Jul 2010 10:28:14 -0700
From: "Charles E. Perkins" <charles.perkins@earthlink.net>
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Subject: Re: [Autoconf] RFC 5889 (Was: Call for comments to a new AUTOCONF charter proposal)
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Hello Jari, I support the publication of RFC 5889 with the inclusion of the revisions as you and Erik have suggested below. Regarding the last edit, I am also O.K. with that, but with the understanding that link-local solutions are neither favored or disfavored per se. Wide applicability and performance issues (for example) are (to me at least) much more important. Regards, Charlie P. On 6/29/2010 2:55 PM, Jari Arkko wrote: > Christopher, > >> Incidentally the charter refers to RFC 5889, which is not yet published. >> I see that is in AUTH48, but noted as on hold for a technical issue. >> AUTH48 seems rather late for a technical issue, unless meaning a >> publication technical issue rather than an engineering technical issue. > > Yes it is late. We approved the document but after approval there was a > comment on the IETF last call thread from Erik Nordmark. We are trying > to resolve it but unfortunately it took a long time for me to do so. But > we are now trying to do it. The standing proposal is below, comments > appreciated. > > Jari > > ----- > > We talked about this during Anaheim but never got to the end of it. > Sorry -- I should have posted a suggestion back then but other business > has kept me busy. I have now looked at the discussion again. > > The essence of Erik's complaint was twofold. First, the document claimed > that routing protocols require a unique IP address (and not just a > router ID), which is not true. Second, that the document unnecessarily > dismisses link local identifiers as addresses. > > About the first issue: Erik is right that not all routing protocols > require unique IP addresses at all. But at the same time, apparently > some routing protocols in the MANET space do require it (e.g., OSLR in > RFC 3626). In a way, the document is factually correct on this point as > it states that some protocols do have these requirements. But it may > also be misleading from another perspective, as we certainly do not want > to claim that using unique IP addresses is a recommended design for a > routing protocol or the only possible model. > > The second issue is partially related to the first one, as one of the > reasons for using non-link-local addresses is to enable the use of > unique addresses in routing protocols. In any case, the intent was never > to claim that link local addresses cannot be used. The document merely > makes one recommendation about a commonly used addressing model in adhoc > networks. I would like to defend the working group's right to publish > such an "example model" -- particularly after years of effort spent in > trying to find the true universal model. As long as the working group is > not making false claims, this is clearly appropriate. But I can see that > the document could be clearer about its claims. > > Here's a possible rewrite of Section 5 to address these issues: > > OLD: > Routing protocols running on a router may exhibit different > requirements for uniqueness of interface addresses; some have no such > requirements, others have requirements ranging from local uniqueness > only, to uniqueness within, at least, the routing domain (as defined > in [RFC1136]). > > Configuring an IP address that is unique within the routing domain > satisfies the less stringent uniqueness requirements of local > uniqueness, while also enabling protocols which have the most > stringent requirements of uniqueness within the routing domain. This > suggests the following principle: > > o an IP address assigned to an interface that connects to a link > with undetermined connectivity properties should be unique, at > least within the routing domain. > NEW: > Routing protocols running on a router may exhibit different > requirements for uniqueness of interface addresses; some have no such > requirements, others have requirements ranging from local uniqueness > only, to uniqueness within, at least, the routing domain (as defined > in [RFC1136]). Many modern routing protocols do not need to employ > unique addresses at all, and theoretically, their only requirement is that > some router identifier is unique. > > Nevertheless, configuring an IP address that is unique within the routing > domain satisfies the less stringent uniqueness requirements of local > uniqueness, while also enabling protocols which have the most > stringent requirements of uniqueness within the routing domain. As > a result, many current deployments have chosen to employ the following > simplifying principle: > > o an IP address assigned to an interface that connects to a link > with undetermined connectivity properties should be unique, at > least within the routing domain. > > And in Section 6.1: > > OLD: > o There is no mechanism to ensure that IPv6 link-local addresses are > unique across multiple links, hence they cannot be used to > reliably identify routers (it is often desirable to identify a > router with an IP address). > NEW: > o There is no mechanism to ensure that IPv6 link-local addresses are > unique across multiple links, hence they cannot be used to > reliably identify routers, should this be necessary in the chosen > routing protocol. > > OLD: > Therefore, autoconfiguration solutions should be encouraged to > primarily focus on configuring IP addresses that are not IPv6 link- > local. > NEW: > Therefore, a common theme in many autoconfiguration solutions is to > focus on configuring IP addresses that are not IPv6 link- > local. > > _______________________________________________ > Autoconf mailing list > Autoconf@ietf.org > https://www.ietf.org/mailman/listinfo/autoconf >
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- [Autoconf] RFC 5889 (Was: Call for comments to a … Jari Arkko
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Jari Arkko
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Jari Arkko
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Ulrich Herberg
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Charles E. Perkins
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Stan Ratliff
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Zach Shelby
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Erik Nordmark
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Zach Shelby
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Ryuji Wakikawa
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Ryuji Wakikawa
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Emmanuel Baccelli
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Emmanuel Baccelli
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Jari Arkko
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Ulrich Herberg
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Jari Arkko
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Ulrich Herberg
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Thomas Heide Clausen
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Thomas Heide Clausen
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Thomas Heide Clausen
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Ulrich Herberg
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Thomas Heide Clausen
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Thomas Heide Clausen
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Henning Rogge
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Teco Boot
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Alexandru Petrescu
- Re: [Autoconf] RFC 5889 (Was: Call for comments t… Erik Nordmark
- Re: [Autoconf] RFC 5889 Erik Nordmark
- [Autoconf] Forgot one [Was: RFC 5889 Erik Nordmark
- Re: [Autoconf] RFC 5889 Dearlove, Christopher (UK)
- Re: [Autoconf] RFC 5889 Erik Nordmark
- Re: [Autoconf] Forgot one [Was: RFC 5889 Erik Nordmark
- Re: [Autoconf] Forgot one [Was: RFC 5889 Dearlove, Christopher (UK)
- Re: [Autoconf] what's a router Henning Rogge
- [Autoconf] WC consensus call for RFC5889 modifica… Ryuji Wakikawa
- Re: [Autoconf] WC consensus call for RFC5889 modi… Jari Arkko
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Henning Rogge
- Re: [Autoconf] WC consensus call for RFC5889 modi… Henning Rogge
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Henning Rogge
- Re: [Autoconf] WC consensus call for RFC5889 modi… Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Alexandru Petrescu
- Re: [Autoconf] WC consensus call for RFC5889 modi… Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Henning Rogge
- Re: [Autoconf] WC consensus call for RFC5889 modi… Dearlove, Christopher (UK)
- Re: [Autoconf] what's a router (was: WC consensus… Alexandru Petrescu
- Re: [Autoconf] what's a router (was: WC consensus… Henning Rogge
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] WC consensus call for RFC5889 modi… Emmanuel Baccelli
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] what's a router Teco Boot
- Re: [Autoconf] what's a router Henning Rogge
- Re: [Autoconf] what's a router (was: WC consensus… Ulrich Herberg
- Re: [Autoconf] what's a router (was: WC consensus… Teco Boot
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] what's a router Rogge Henning
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] what's a router Alexandru Petrescu
- Re: [Autoconf] WC consensus call for RFC5889 modi… Alexandru Petrescu
- Re: [Autoconf] what's a router Teco Boot
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Thomas Heide Clausen
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Thomas Heide Clausen
- Re: [Autoconf] WC consensus call for RFC5889 modi… Emmanuel Baccelli
- Re: [Autoconf] WC consensus call for RFC5889 modi… Charles E. Perkins
- Re: [Autoconf] WC consensus call for RFC5889 modi… Emmanuel Baccelli
- Re: [Autoconf] WC consensus call for RFC5889 modi… Emmanuel Baccelli